145983767 has 4 divisors (see below), whose sum is σ = 151017720. Its totient is φ = 140949816.

The previous prime is 145983757. The next prime is 145983769. The reversal of 145983767 is 767389541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145983767 - 2⁴ = 145983751 is a prime.

It is a super-3 number, since 3×145983767³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145983769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2516933 + ... + 2516990.

It is an arithmetic number, because the mean of its divisors is an integer number (37754430).

Almost surely, 2^145983767 is an apocalyptic number.

145983767 is a deficient number, since it is larger than the sum of its proper divisors (5033953).

145983767 is an equidigital number, since it uses as much as digits as its factorization.

145983767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033952.

The product of its digits is 1270080, while the sum is 50.

The square root of 145983767 is about 12082.3742286026. The cubic root of 145983767 is about 526.5442267759.

The spelling of 145983767 in words is "one hundred forty-five million, nine hundred eighty-three thousand, seven hundred sixty-seven".